diff options
| author |   Don Hiatt <don.hiatt@intel.com> | 2017-08-04 13:53:51 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-08-22 14:22:36 -0400 |
| commit | 13c19222889daf91da36b7fb63b5d5d9ce89b377 (patch) | |
| tree | 6db5ba838a47d935ed25560b797700bd8b14a922 /include/rdma | |
| parent | IB/hf1: User context locking is inconsistent (diff) | |
| download | linux-dev-13c19222889daf91da36b7fb63b5d5d9ce89b377.tar.xz linux-dev-13c19222889daf91da36b7fb63b5d5d9ce89b377.zip | |
IB/rdmavt, hfi1, qib: Modify check_ah() to account for extended LIDs
rvt_check_ah() delegates lid verification to underlying
driver. Underlying driver uses different conditions to
check for dlid depending on whether the device supports
extended LIDs
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/opa_addr.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h index 9b5e642cf550..8d3ad4ecbea1 100644 --- a/include/rdma/opa_addr.h +++ b/include/rdma/opa_addr.h @@ -48,11 +48,22 @@ #ifndef OPA_ADDR_H #define OPA_ADDR_H +#include <rdma/opa_smi.h> + #define OPA_SPECIAL_OUI (0x00066AULL) #define OPA_MAKE_ID(x) (cpu_to_be64(OPA_SPECIAL_OUI << 40 | (x))) #define OPA_TO_IB_UCAST_LID(x) (((x) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) \ ? 0 : x) /** + * 0xF8 - 4 bits of multicast range and 1 bit for collective range + * Example: For 24 bit LID space, + * Multicast range: 0xF00000 to 0xF7FFFF + * Collective range: 0xF80000 to 0xFFFFFE + */ +#define OPA_MCAST_NR 0x4 /* Number of top bits set */ +#define OPA_COLLECTIVE_NR 0x1 /* Number of bits after MCAST_NR */ + +/** * ib_is_opa_gid: Returns true if the top 24 bits of the gid * contains the OPA_STL_OUI identifier. This identifies that * the provided gid is a special purpose GID meant to carry @@ -95,4 +106,11 @@ static inline bool opa_is_extended_lid(u32 dlid, u32 slid) else return false; } + +/* Get multicast lid base */ +static inline u32 opa_get_mcast_base(u32 nr_top_bits) +{ + return (be32_to_cpu(OPA_LID_PERMISSIVE) << (32 - nr_top_bits)); +} + #endif /* OPA_ADDR_H */ |